Title
- Registrum ordinis Cysterciensis1
- Regulae1
- Regulations2
- Religious text1
- Religious texts13
- Rent1
- Repartimientto de las tierras1
- Report3
- Rhetoric text1
- Rhetorica ad Herennium1
- Risālah bar usṭurlāb1
- Risālah fī al-barāhīn ʻalá masāʼil al-jabr wa-al-muqābalah1
- Risālah fī al-hayʼah2
- Risālah fī al-hayʼah al-falakīyah1
- Risālah fī al-ḥisāb1
- Risālah fī ʻilm al-hayʼah1
- Ritual1
- Riḥlah al-Nāṣirīyah1
- Roman de Troie1
- Roman de la rose1